Google Chrome: If you've recently moved from Firefox to Chrome, you probably miss the way that Firefox orders tabs. This small Google Chrome extension switches the tab ordering in Chrome to mimic how Firefox handles new tabs.
The default behaviour for Chrome is to group tabs together — new tabs open relative to their parent tab. If you prefer new tabs to open at the end of the row in the order in which you have opened them, as they do in Firefox, Modified Tab Ordering can make that happen.
In the screenshot above you can see how we opened Chrome, visited Lifehacker.com, then Google, and then returned to the original tab to open a few links from Lifehacker — all the new tabs appeared at the end of the row as they opened instead of appearing, grouped, beside the original Lifehacker tab. It's a small tweak, but if you've got a routine for how you open tabs and read them a little thing like the order they appear in can really throw you off.
Modified Tab Ordering is a free extension and works wherever Chrome does.